Drilling-machine



UNITED STATES i PATENT Orinda..

WILLIAME. VCANEDY, OFROCHEKSTER, MINNESOTA.

MILLING-MACHINE.

SPECIFICATION forming part of Letters Patent No.380,018, dated March 2.7, 1888. Appncation filed August 21, 1885. Renewed senteniner 12, 18s- 1.' serial 1510.249530; (No nieder) To aZZ whom it may concern.-

Beit known that I, WILLIAM E. GANEDY, residing at Rochestenin the county of Olmsted and State of Minnesota, have invented' cheap machine-tool is produced.

In the drawings, Figure 1 is a central longitudinal section of the drilling-machine, some parts being in elevation. Fig. 2 isa plan, and Fig. 3 an end elevation, of the feed-screw. Fig. 4 is a section on lineyy, andFig. 5 a section on line x x. Fig. 6 is an elevation of the boringbar and its crank detached. Fig. 7 is a side elevation of the machine complete.

A indicates the base-bar, which is provided with notches a at one end and a perforation, a', near the other vend.

The standard B has a mortise through which the bar A passes. One side of the standard has a rabbet, b, extending to the mortise, and a hole through the opposite side of the standard permits the passageof bolt C through this hole and the hole 'a' in the bar, and the nut c screws on this bolt, resting against the face of the bar Awithin the rabbet b. The standardV is a recess, b3, larger than'the bearing 112 and'v having a spline or flat side, b, the recess being otherwise circular in cross-section.

The boring-bar D has a head, d, which contains a socket for the drill `E and presents a shoulder toward the boring-bar. -The baris otherwise of size to fit the bearings. A screwthreaded piece, F, having a flattened or splined face, f, fits snugly into the recess b3, and has a perforation corresponding to the'bearing b. rIhis screw-threaded piece slides easily; lengthwise in the recess b3, but cannot turn therein, owing to the flattened or splined -faces of the recess and screw-threaded piece.

A hand-wheel, G, yhas an internal screwthread which fits upon piece F. This handwheel, when on its seat, has a side bearing against the shoulder b5 of the standard B.

When the parts are assembled, by placing the piece F in the recess and screwing the hand-wheel on the end of said piece andpassing the boringbar from the front through yits bearings the shoulder el rests against the frontA endv of the screw-piece F.v Then by turning the hand-wheel G the screw-piece, ,being unable to turn, must advance through th'e wheel, and so bear against the head d and advance theboring-bar. Theboring-bar may bepressed back by pressure from the front, (the handwheel having been turned to permitsuch movement;) but the hand-wheel does notof itself A retract the boring-bar. 1 l

The crank His attached to the boring-bar, after its insertion in its bearings, by screwing thereon, or by a pin or spline, in usual man ner.

-The work-rest K is a standard extending upward from the base-bar, and can be moved to such position on the bar as to accommodate work of various kinds. of this-rest may be used to receive the end of a shaft or similar piece, or a projectiondfrom an irregular casting, serving to steady the same, and will act as a clamp and prevent the work from turning.l `The lower end of rest K has a mortise, K', extending through it. A

tooth, K, extends downward into the mortise,

A notch, la, in the top in dotted lines, Fig. 1, the tooth will'be disenv gaged from the notches, and the work-rest may be moved in either direction along the bar.

roo

This drilling-machine'isvery light and sim?.

ple, can be readily taken apart and assembled, and is easily held in working position in any ordinary vise or clamp.

I claim- 1. In a boring-machine, the combination, with the base-bar A, of the standard B, carrying the boring-bar and feed, said bar passing through a mortise in the standard and secu red by a bolt passing through a hole in the bar and standard and held by a nut, the bolt-head and nut resting against the bar and standard, as set forth.

2. The'combination, with the recessed standard, of the screw-threaded piece in said recess, the boring-bar passing through said piece and havinga rest against the end thereof, and

the hand-wheel screw-threaded to said piece and resting against the standard.

3. The standard B, having bearings b b and recess b3, the attened screw-threaded piece F, fitting said recess, lthe boring-bar D, having a head, d, resting against said piece, the handwheel G, screwed on piece F, and the crank H on the boring-bar, all combined, as stated.

4. The combination, with the notched basebar, of the standard, drill, and feed mechanism and the work-rest K, mortised for the passage of the base-bar and having a tooth, K, to enter a notch in the bar, substantially as described.

In testimony whereof I aix my signature in presence of two witnesses.

WILLIAM E. CANEDY.

Witnesses:

FRANK B. KELLOGG, CYRUs SCHWAB. 

